99564911648 has 12 divisors (see below), whose sum is σ = 196018419870. Its totient is φ = 49782455808.

The previous prime is 99564911617. The next prime is 99564911681. The reversal of 99564911648 is 84611946599.

It can be written as a sum of positive squares in only one way, i.e., 80799199504 + 18765712144 = 284252^2 + 136988^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555701713 + ... + 1555701776.

Almost surely, 2^99564911648 is an apocalyptic number.

It is an amenable number.

99564911648 is a deficient number, since it is larger than the sum of its proper divisors (96453508222).

99564911648 is a wasteful number, since it uses less digits than its factorization.

99564911648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111403499 (or 3111403491 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 62.

The spelling of 99564911648 in words is "ninety-nine billion, five hundred sixty-four million, nine hundred eleven thousand, six hundred forty-eight".